So perhaps I'm missing something here, but why would you want to fly a Syma X8 5,000 feet away from you? Unless you have super human vision, you won't be able to see it. And you can't fly by GPS (it doesn't have it) or by FPV (it doesn't have that either, except the X8W, and that is crap and likely won't make it more than a few hundred yards at best). And without altitude hold on all but one of the models, flying is entirely manual. Quadcopters like that are meant to be flown close to you, well within sight. Flying 5,000 feet away, or even half that, seems pretty reckless.